Non-woven fabric material and application thereof

A technology of non-woven fabrics and reaction temperature, applied in the direction of non-woven fabrics, textiles and papermaking, cellulose/protein conjugated artificial filaments, etc. Anti-cross-color effect and other issues to achieve the effect of ensuring the use effect

Active Publication Date: 2020-08-14
广州浪奇日用品有限公司
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the color-absorbing sheet based on this idea has two serious defects: the first, in the actual washing process, the distance between the fabrics is very small, and even often the surfaces of the two fabrics are closely attached, while the above-mentioned The electrostatic adsorption relied on in the thinking is a passive adsorption method, which acts like a filter, and can only absorb the dye molecules near the color-absorbing film, but cannot effectively absorb the dye molecules far away from the color-absorbing film; therefore, from the fa

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Non-woven fabric material and application thereof
  • Non-woven fabric material and application thereof
  • Non-woven fabric material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0039] One, the preparation of modified cellulose A

[0040] One), the preparation of (4-vinylphenyl-4'-methylenecarboxyphenyl) iodonium

[0041] 1. Using molecular sieves as a catalyst, diphenyliodonium salt reacts with ethylene to obtain 4,4'-divinyldiphenyliodonium (as shown in formula (I)) (embodiment 1-1-1, 1 The reaction conditions of -1-2 and 1-1-3 are shown in Table 1), 4,4'-divinyldiphenyliodonium is partially oxidized through the supported palladium (Pd) heteropolyacid catalyst system Obtain 4-vinylphenyl-4'-methylenecarboxyphenyl) iodonium (as shown in formula (II)) (embodiment 1-1-1, 1-1-2, 1-1-3 reaction The conditions are shown in Table 2):

[0042]

[0043] Among them, the molecular sieve is sodium ZSM-5 molecular sieve exchanged by magnesium, calcium or barium.

[0044] Table 1 Diphenyliodonium salt and ethylene reaction conditions and substance consumption

[0045]

[0046]

[0047] Table 2 Reaction conditions and amounts of substances used in par...

Embodiment 1-2-1

[0051] 1. Synthesis of (4-vinylphenyl-4'-methylenecarboxyphenyl)iodonium-terminated polyvinylpyrrolidone

[0052] The monomer vinylpyrrolidone (NVP) is configured into an aqueous solution with a mass fraction of 45%, using a small amount of hydrogen peroxide (0.2% of NVP) as a catalyst, under the action of azobisisobutyronitrile (0.3% of NVP), in Initiate polymerization at 40-50°C, react for 2 hours, and the monomer polymerization conversion rate is 93-95%. Add (4-vinylphenyl-4'-methylenecarboxyphenyl) iodonium (amount of 0.5% NVP) prepared in Example 1-1-1, react for 0.2 hours, and seal the polymer terminal to obtain (4-vinylphenyl-4'-methylenecarboxyphenyl)iodonium-terminated polyvinylpyrrolidone.

[0053] Then add 0.2% ammonia water to the polymer to decompose the remaining azobisisobutyronitrile. The polymer is spray-dried under hot air at 120-135°C to obtain powdery (4-vinylphenyl-4'-methylenecarboxyphenyl)iodonium-terminated polyvinylpyrrolidone. (4-vinylphenyl-4'-m...

Embodiment 1-2-2

[0065] 1. Synthesis of (4-vinylphenyl-4'-methylenecarboxyphenyl)iodonium-terminated polyvinylpyrrolidone

[0066] The monomer vinylpyrrolidone (NVP) was configured into an aqueous solution with a mass fraction of 50%. Use a small amount of hydrogen peroxide (0.3% NVP) as a catalyst, under the action of azobisisobutyronitrile (0.4% NVP), initiate polymerization at 50-60°C, react for 3 hours, and the monomer polymerization conversion rate is 96~98%.Add ((4-vinylphenyl-4-methylenecarboxyphenyl) iodonium (consumption is the NVP of 0.8%) that embodiment 1-1-1 makes, reacted 0.5 hour, Capping the polymer yields (4-vinylphenyl-4-methylenecarboxyphenyl)iodonium-capped polyvinylpyrrolidone.

[0067] Add 0.3% ammonia water to the polymer to decompose the remaining azobisisobutyronitrile. The polymer is spray-dried under hot air at 135-150°C to obtain powdery (4-vinylphenyl-4-methylenecarboxyphenyl)iodonium-terminated polyvinylpyrrolidone. (4-vinylphenyl-4'-methylenecarboxyphenyl) i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a non-woven fabric material and application thereof. The non-woven fabric material is prepared by the following steps: S1, oxidizing cellulose to obtain 2,3-dicarboxycellulose,and carrying out condensation reaction on the 2,3-dicarboxycellulose and (4-vinylphenyl-4'-methylenecarboxyphenyl) iodonium-terminated polyvinylpyrrolidone under the action of heating and a dehydrating agent to obtain modified cellulose A; S2, oxidizing cellulose to obtain 6-carboxyl cellulose, and performing cationic modification to obtain modified cellulose B; and S3, mixing the modified cellulose A and the modified cellulose B to obtain mixed fibers, and performing pretreatment, web forming, reinforcement and chemical finishing to obtain the product. According to the non-woven fabric material, the color absorption capacity of the color absorption fibers is improved without influencing the decontamination effect of a detergent, so that the color crossing problem in the fabric washing process is effectively prevented.

Description

technical field [0001] The invention belongs to the field of textile engineering, and in particular relates to a nonwoven material and its application. Background technique [0002] During the washing process of the fabrics that people wear every day, the dyes on the surface of the fabrics will fall off and enter the washing solution. With the agitation of the washing operation, they will transfer to the surface of other fabrics in the washing solution, causing the cross-color phenomenon we see with the naked eye. Generally speaking, dyes used in fabrics have a strong affinity for fabrics, and dyes can be combined with fabric fibers through van der Waals forces, hydrogen bonds, and chemical bonds, so that dye molecules are fixed on the fibers, which is the so-called dyeing process. The dyeing process is reversible. During the washing process, some of the links between the dyes and the fabric fibers can be untied, and the dye molecules return to free molecules, but the free d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): D04H1/4382D04H1/425C08B15/04D01F8/02C08F8/18C08F126/10
CPCC08B15/04C08F8/18D01F8/02D04H1/425D04H1/4382C08F126/10
Inventor 陆业昌甘静姚泽伟蔡熙扬郭晓丹黄煜璇卢志敏张世林刘保
Owner 广州浪奇日用品有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap